const output = document.getElementById("output");

fetch("http://app-test.wisdompulse.cn/api/v1/llm/demo", {
    method: "POST",
    headers: {
        "Content-Type": "application/json",
        "Accept": "text/event-stream",
        "Authorization": "Bearer test"
    },
    body: JSON.stringify({})
}).then(response => {
    const reader = response.body.getReader();
    const decoder = new TextDecoder("utf-8");
    let buffer = "";

    function read() {
        reader.read().then(({ done, value }) => {
            if (done) {
                output.textContent += "\n[连接结束]";
                return;
            }

            buffer += decoder.decode(value, { stream: true });

            // 拆解成 SSE 事件格式：每段以 \n\n 分隔
            const parts = buffer.split('\n\n');
            buffer = parts.pop(); // 留给下一次未完整的部分

            for (const part of parts) {
                const line = part.trim();
                if (line.startsWith('data:')) {
                    const jsonStr = line.substring(5).trim();
                    try {
                        const data = JSON.parse(jsonStr);
                        output.textContent += `收到：${data.content || '[无内容]'}\n`;
                    } catch (e) {
                        output.textContent += `解析失败：${jsonStr}\n`;
                    }
                }
            }

            read();
        });
    }

    read();
});